3 years ago

3a+4b=7ab Find the mistake and solve

Mathematics

1 answer:

alekssr [168]3 years ago

7 0

Answer:

The mistake is adding and there is no way to solve if you have to add

Step-by-step explanation:

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A sporting goods store sold 30% of the baseball bats in stock. If they had 420 bats in stock, how many did they sell?

Tema [17]

Answer:they sold 126 bats

Step-by-step explanation:

30/100= 3/10

3/10x420=3x42=126

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3 years ago

Q. If A is a square matrix such that A² = A, then write the value of 7 A −(I + A)³, where I is an identity matrix.

andriy [413]

Answer:

7A−(I + A)³

=7A−(1³ + A³ +3.I.A² +3.1².A)

=7A−(I+ A².A+3A² +34)

= 7A-(I+A.A+3A+34) (*: A² = A)

=7A-(I+ A² +6A)

= 7A-(I+A+64)

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2 years ago

What is the answer??

Alchen [17]

Answer: 7.8 ⋅ $10^{4}$

Step-by-step explanation:

To write a linear expression in standard form, rearrange the terms in alphabetical order.

7.8 ⋅ $10^{4}$

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3 years ago

What is 6^-2/2^4 ???????????????

sergij07 [2.7K]

Answer:

1/52

Step-by-step explanation:

2 to the fourth is 16, and 6 to the second is 36. However, since it's a negative exponent, you'd have to move it down to to the bottom of the fraction, creating 1/16+36, which makes 1/52.

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4 years ago

The circumference of a circle is 44 in. What is the area? (Use 22 for .)

Stells [14]

Answer:

Step-by-step explanation:

154 square inches

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3 years ago